Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask DBMS Expert


Home >> DBMS

Q1. Define the term foreign key. What is this concept mainly used for?

Q2. Describe the entity integrity and referential integrity constraints. Why each is considered significant?

Q3. describe why are duplicate tuples not permitted in a relation?

Q4. Consider the given relations:

WORKS(Pname, Cname, Salary)
LIVES(Pname, Street, City)
LOCATED_IN(Cname, City)
Manager(Pname, Mgrname)

Where Pname = Person name, Cname = Company name and Mgrname = Manager name.

prepare down the SQL queries for the given:

a) List all the names of people who work for the company Wipro all along with the cities they live in.

b) Find out the names of the persons who live and work in the similar city.

c) Find out the names of the persons who don’t work for ‘Infosys’.

d) Find out the persons whose salaries are more than that of the entire Oracle employees.

e) Find out the names of the companies which are located in every city where the company ‘Infosys’ is situated.

Q5. Describe the Inner Join concept in the Relational Algebra.

DBMS, Programming

  • Category:- DBMS
  • Reference No.:- M910404

Have any Question? 


Related Questions in DBMS

Assignment1write a query that retrieves studentlastname

Assignment 1. Write a query that retrieves student.last_name, student.first_name and total number of enrollments from the student and enrollment tables. Your query should also include students that do not have any enroll ...

Individual outsourcing risksprepare a 8- to 10-slide

Individual: Outsourcing Risks Prepare a 8- to 10-slide PowerPoint presentation, including speaker notes, that identifies the possible risks to an organization in each of the following outsourcing situations: • The use of ...

Lab modifying a database design in visiothis assignment

Lab: Modifying a Database Design in Visio This assignment contains two Sections: Visio Diagram and Design Summary. You must submit both sections as separate files in order to complete this assignment. Use "Appendix A: De ...

Computer sciencein reference to your database design

Computer Science In reference to your Database Design Proposal: Proposal Outline, provide a narrative analysis of the customer and user needs by defining the customers and users as well as describing their individual nee ...

Learning outcomes1 manage user access and user profiles

Learning Outcomes 1. Manage user access and user profiles within a complex DBMS 2. Conduct database audits 3. Develop backup and recovery procedures Read the given scenario and perform all tasks. You have to answer all q ...

Capstone project purpose of the assessmentthe purpose of

Capstone Project Purpose of the assessment: The purpose of this assignment is to identify new learning, self realisation and plan for improvement. Students will have an opportunity to explore the use of the online tools ...

Homeworkunlimited pickers is a group of workers who have

Homework Unlimited Pickers is a group of workers who have joined together to provide harvesting services to farmers who need to have their crops brought in. The organization has many teams of workers who travel from loca ...

Database analysis and designimplement the initial database

Database Analysis and Design Implement the initial database design for the Enterprise Resource Planning conceptual model described by the following requirements in your selected RDBMS. You need to create the Entity-Relat ...

Warehouse management system projectproject deliverablesthe

Warehouse management system project Project Deliverables The project requires students to perform three phases: (a) requirements analysis, (b) system and database design, and (c) a project plan. Note that in the phase 3, ...

Taskoverview of business casealive amp boating aampb is a

Task Overview of business case: Alive & Boating (A&B) is a small start­up company that sells small boats in Wagga. A&B keeps its models in several showrooms across the city. At this stage customers cannot view the availa ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen